2019/12/12 by Sarath Raman Nair, Lachlan J. Rogers, Nair, Sarath Raman +17 · 2 citations
Materials Science · Physics and Astronomy · #Advanced Fiber Laser Technologies #Cold Atom Physics and Bose-Einstein Condensates #Diamond and Carbon-based Materials Research #FOS: Physical sciences #Mesoscale and Nanoscale Physics (cond-mat.mes-hall) #Quantum Physics (quant-ph)
paper · pdf · doi:10.48550/arxiv.1912.05801
openalex publication_date 2019/12/12 · openalex created_date 2022/07/24 · openalex updated_date 2026/07/28
Laser-threshold magetometry using the negatively charged nitrogen-vacancy\n(NV-) centre in diamond as a gain medium has been proposed as a technique to\ndramatically enhance the sensitivity of room-temperature magnetometry. We\nexperimentally explore a diamond-loaded open tunable fibre-cavity system as a\npotential contender for the realization of lasing with NV- centres. We observe\namplification of the transmission of a cavity-resonant seed laser at 721 nm\nwhen the cavity is pumped at 532 nm, and attribute this to stimulated emission.\nChanges in the intensity of spontaneously emitted photons accompany the\namplification, and a qualitative model including stimulated emission and\nionisation dynamics of the NV- centre captures the dynamics in the experiment\nvery well. These results highlight important considerations in the realization\nof an NV- laser in diamond.\n